Dr. Ellenbogen's academic, clinical and research efforts include an interest in newer, more effective ways to perform ablation and to develop methods for ablation of atrial fibrillation. He is involved in the development of new types of pacemakers and exploring the role of pacemakers in treating congestive heart failure and atrial fibrillation. Dr. Ellenbogen has a highly successful record of attracting both public and private funding and has served as principal investigator on over 100 funded grants and contracts. Additionally, Dr. Ellenbogen has served as the Director of Data and Safety Monitoring Boards for a number of national and international clinical trials.